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MAIN RELAY CONTROL [SKYACTIV-G 2.0]
Outline
Supplies power to each part by switching the main relay on/off at the optimal timing according to the vehicle conditions.
Block Diagram
Operation
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When the ignition is switched ON (engine off or on), the main relay turns on and electrical power is supplied to each sensor and device.
When the ignition is switched off from ON (engine off or on), an on-request signal is received from each control (such as drive-by-wire control, electric variable valve timing control) and the main relay turns on for a specified period.